Wiegand, Sebastian ; Flege, Stefan ; Baake, Olaf ; Ensinger, Wolfgang (2013)
Effect of different calcination temperatures and post annealing on the properties of 1,3 propanediol based Sol-Gel (Na0.5K0.5)NbO3 (NKN) thin films.
In: Journal of Alloys and Compounds, 548
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
1,3 Propanediol based Sol-Gel (Na0.5K0.5)NbO3 (NKN) lead-free thin films were synthesized on Pt/Ti/SiO2/Si substrates. Na-acetate, K-acetate, and Nb-pentaethoxide were used as metal precursors and 1,3 propanediol as solvent. The influence of different calcination temperatures on the properties of the NKN thin films was analysed by SEM pictures, XRD, hysteresis and leakage current measurements. Low calcination temperatures led to low leakage currents over the whole electric field range. Based on these findings a calcination at low temperatures was combined with a post annealing step. In this way low leakage currents of 6 x 10-5 A/cm2 at an electric field of 150 kV/cm and 2 Pr and 2 Ec values of 26.6 µC/cm2 and 214 kV/cm, respectively, could be achieved. All films with post annealing treatment were free of pore and crack formation on the surface and crystallized in the single perovskite phase of NKN.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Wiegand, Sebastian ; Flege, Stefan ; Baake, Olaf ; Ensinger, Wolfgang |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of different calcination temperatures and post annealing on the properties of 1,3 propanediol based Sol-Gel (Na0.5K0.5)NbO3 (NKN) thin films |
| Sprache: | Englisch |
| Publikationsjahr: | 25 Januar 2013 |
| Verlag: | Elsevier Science Publishing Company |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Alloys and Compounds |
| Jahrgang/Volume einer Zeitschrift: | 548 |
| URL / URN: | http://www.sciencedirect.com/science/article/pii/S0925838812... |
| Kurzbeschreibung (Abstract): | 1,3 Propanediol based Sol-Gel (Na0.5K0.5)NbO3 (NKN) lead-free thin films were synthesized on Pt/Ti/SiO2/Si substrates. Na-acetate, K-acetate, and Nb-pentaethoxide were used as metal precursors and 1,3 propanediol as solvent. The influence of different calcination temperatures on the properties of the NKN thin films was analysed by SEM pictures, XRD, hysteresis and leakage current measurements. Low calcination temperatures led to low leakage currents over the whole electric field range. Based on these findings a calcination at low temperatures was combined with a post annealing step. In this way low leakage currents of 6 x 10-5 A/cm2 at an electric field of 150 kV/cm and 2 Pr and 2 Ec values of 26.6 µC/cm2 and 214 kV/cm, respectively, could be achieved. All films with post annealing treatment were free of pore and crack formation on the surface and crystallized in the single perovskite phase of NKN. |
| Freie Schlagworte: | Ceramics, Ferroelectrics, scanning electron microscopy, SEM, Sol-Gel processes, Thin film, X-ray diffraction |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 12 Okt 2012 11:55 |
| Letzte Änderung: | 05 Mär 2013 10:03 |
| PPN: | |
| Sponsoren: | The authors gratefully acknowledge the LOEWE-Zentrum AdRIA for financial support. |
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